Cited by 723Mitochondrial Function and PathologyMetabolism, Diabetes, and CancerAdipose Tissue and Metabolism

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The Mitochondrial-Derived Peptide MOTS-c Promotes Metabolic Homeostasis and Reduces Obesity and Insulin Resistance

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Lee, Changhan, Zeng, Jennifer, Drew, Brian G., Sallam, Tamer, Martin-Montalvo, Alejandro, Wan, Junxiang, Kim, Su-Jeong, Mehta, Hemal, Hevener, Andrea L., de Cabo, Rafael, Cohen, Pinchas·2015·Cell Metabolism

Abstract

Mitochondria are known to be functional organelles, but their role as a signaling unit is increasingly being appreciated. The identification of a short open reading frame (sORF) in the mitochondrial DNA (mtDNA) that encodes a signaling peptide, humanin, suggests the possible existence of additional sORFs in the mtDNA. Here we report a sORF within the mitochondrial 12S rRNA encoding a 16-amino-acid peptide named MOTS-c (mitochondrial open reading frame of the 12S rRNA-c) that regulates insulin sensitivity and metabolic homeostasis. Its primary target organ appears to be the skeletal muscle, and its cellular actions inhibit the folate cycle and its tethered de novo purine biosynthesis, leading to AMPK activation. MOTS-c treatment in mice prevented age-dependent and high-fat-diet-induced insulin resistance, as well as diet-induced obesity. These results suggest that mitochondria may actively regulate metabolic homeostasis at the cellular and organismal level via peptides encoded within their genome.

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Authors
Lee, C., Zeng, J., Drew, B. G., Sallam, T., Martin-Montalvo, A., Wan, J., Kim, S.-J., Mehta, H., Hevener, A. L., de Cabo, R., & Cohen, P.
Affiliations
  • University of Southern California (US)
  • University of California, Los Angeles (US)
Corresponding author
  • Lee, Changhan
  • Cohen, Pinchas
Venue
Cell Metabolism
Publisher
Elsevier BV
Published
2015-03
Volume
21
Issue
3
Pages
443-454
ISSN
1550-4131 (ISSN-L)
OpenAlex
W2160343816
Cited by
715
References
62
Citations by year
2026: 61 · 2025: 77 · 2024: 104 · 2023: 97 · 2022: 59 · 2021: 67 · 2020: 68 · 2019: 55 · 2018: 45 · 2017: 27 · 2016: 40 · 2015: 15
FWCI
18.37
Type
journal article
Language
en
Open access
Locations
  • Cell Metabolism (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health (UL1TR000130, 7r01ag034430-05)
  • National Institute on Aging (1R01AG 034430, # R01AG034430)
  • National Institute of General Medical Sciences (R01GM090311)
  • National Institute of Diabetes and Digestive and Kidney Diseases (NIH DK063491, P30DK063491)
  • National Institute of Environmental Health Sciences (R01ES020812)
  • National Center for Advancing Translational Sciences
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Metabolism, Diabetes, and Cancer
  • Health Sciences › Medicine › Physiology (medical) › Adipose Tissue and Metabolism
Keywords
MOTS-c, mitochondrial peptides, 12S rRNA, small open reading frames, mitochondrial DNA, metabolic homeostasis, insulin resistance, obesity, AMPK activation, folate cycle, de novo purine synthesis, skeletal muscle, mitochondrial signaling
MeSH terms
Animals, Cell Line, DNA, Mitochondrial, HeLa Cells, Homeostasis, Humans, Insulin, Insulin Resistance, Male, Mice, Inbred C57BL, Mice, Inbred ICR, Mitochondria, Obesity, Peptides, Signal Transduction, Muscle, Skeletal, Cell Line, Tumor, Mice, AMP-Activated Protein Kinases, HEK293 Cells, Diet, High-Fat

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